You can use a set Variable script step to construct the filename
then Save Copy As step and specify the variable as a filename
The Set Variable calculation would be fairly involved construct of Get ( FileName ) &"_"&Year ( Get ( CurrentDate ) )&"_"&Month (Get ( CurrentDate ) )&"_"&Day ( Get ( CurrentDate ))
Not sure if you will need to append the .fp7 extension or not
We have a script that does that every day here.
Set Variable [$Path ; Let ( today = Get ( CurrentDate ) ; "filewin:// Filepath goes here /FileName " & Year(today) & "-" & Right("00" & Month ( today ) ; 2 ) & "-" & Right("00" & Day ( Today ) ; 2 ) ) & ".FP7"
Save a copy as [$Path ; Copy ]
THANK YOU BOTH GENTLEMAN - Can't Believe how many years I've used Clunky workarounds instead.